I bought an SP20 mobile conferencing system, brilliant products and cannot fault in anyway, really it was expensive but every bit of the Sennheiser quality.However, their support is shockingly bad as you end up in a rat run of nowhere, no one wants to know or lets you contact them, "eventually" got through to a company called EPOS and unless you have a list of things they won't talk to you, after weeks of getting this far I am going to give up and try a Jabra device
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